Color Collider source

using UnityEngine;
using System.Collections;

public class PlayerColor : MonoBehaviour {
    public int CurColor;
    public Color C1;
    public Color C2;
    public Color C3;
    public Color C4;

    public float Vspeed;
    public float Hspeed;
    public float Score;
    public float HighScore;

    public bool MoveRight;

    public bool dead = false;

    public GUIStyle main;
    // Use this for initialization
    void Start () {
        Time.timeScale = 1;
        CurColor = Random.Range(1,4);
        InvokeRepeating("ChangeCurColor",0.8f,0.8f);

        }

    // Update is called once per frame
    void Update () {


        if(MoveRight){
            transform.Translate(Hspeed * Time.deltaTime, 0,0);
        } else if(!MoveRight){
            transform.Translate(-Hspeed * Time.deltaTime, 0,0);

        }

        ChangeColor();

        float input = Input.GetAxis("Vertical");
        transform.Translate(0, input * Vspeed * Time.deltaTime,0);
    }
    void ChangeCurColor () {
        CurColor++;
        if(CurColor > 4) {
            CurColor = 1;
        }
    }
    void ChangeColor () {
        if(CurColor == 1) {
            renderer.material.color = C1;
        //  main.normal.textColor = C1;

        }
        if(CurColor == 2) {
            renderer.material.color = C2;
        //  main.normal.textColor = C2;

        }
        if(CurColor == 3) {
            renderer.material.color = C3;
            //main.normal.textColor = C3;

        }
        if(CurColor == 4) {
            renderer.material.color = C4;
            //main.normal.textColor = C4;

        }
    }
    void OnTriggerEnter (Collider trigger) {
        if(trigger.transform.tag == "LeftColors") {
            MoveRight = true;

            Debug.Log("Hit LeftColors");
        }

     if (trigger.transform.tag == "RightColors") {
            MoveRight = false;
            Debug.Log("Hit RightColors");

        }

        if(trigger.name == "" + CurColor) {

            Score++;
        }
        else {
            Die();
        }
    }
    void Die() {
        dead = true;
        Time.timeScale = 0;
        if(Score > PlayerPrefs.GetFloat("Highscore")) {
            PlayerPrefs.SetFloat("Highscore", Score);
        }
        Application.LoadLevel(Application.loadedLevel);
    }
    void OnGUI() {
        GUI.Label(new Rect(10, 10, Screen.width, Screen.height), "Score: " + Score, main);
        GUI.Label(new Rect(10, 50, Screen.width, Screen.height), "Highscore: " + PlayerPrefs.GetFloat("Highscore"), main);





    }
}